⚠️⚠️HELP DUE IN 3 HOURS⚠️⚠️

if a1=4 and an=(an-1)^2 +4 then find the value of a4

Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable

In an improper fraction, is the numerator equal to, less than, or greater than the denominator

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?